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  #16  
Old 12-16-2005, 01:35 PM
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Location: Dayton, VA
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My sunroof had a stripped nylon gear in the slip clutch assembly. I think the previous owner tightened it up quite a bit to keep it from slipping (the purpose of the thing) and it didn't last long. The motor was good.

The dealer couldn't sell me the gear, and wanted hundreds for a new motor. I found a 126 motor, which was somehow backwards from the one I had, removed the nylon gear, rebuilt what I had, and life is good. About a $25 repair.

Ben
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  #17  
Old 12-16-2005, 03:35 PM
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I'm getting some bearing noise out of my P/S pump in the cold. The fluid is a nice clean green and its not that loud so I'm leaving it for now.
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  #18  
Old 12-16-2005, 07:11 PM
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I've never had a sunroof that was not manual. I like the manual and have no experience with a power one.

I know of a w113 with 675,000 miles that has never had a problem with the power steering pump. They are solid but there is a little preventive maintenance for some of them.
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  #19  
Old 12-17-2005, 12:07 AM
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Location: NE Ohio
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my power sunroof opens/closes decently in this cold weather, 20F, at highway speeds (70mph)..
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  #20  
Old 12-17-2005, 12:10 AM
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Quote:
Originally Posted by autozen
Been turnin MB diesel engines over with the PS pump nut for over 20 years to adjust valves. Have done it on hundreds of cars without a problem. I'll bet someone did that once and coincidently the pump started leaking. That's how wive's tales get started.
I guess I should qualify my remark about the P/S pump nut.

I too turn the engine over with that nut when I adjust valves but I also remove the injectors first so I have no compression to fight. I got used to pulling and checking the injectors and recording a compression test at the time of a valve adjustment. Every shaft that was in our shop for repair was due to the owner honking down on it while on a compression stroke. The lucky ones only rounded the nut by using cheapo tools.
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  #21  
Old 12-17-2005, 01:59 AM
Brandon314159
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27mm socket...1/2 drive ratchet or breaker bar...golden

Every time I think the 300SD has low compression...I usually have to do some service and turn the engine over by hand like that...reminds me that its in better shape than I thought
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  #22  
Old 12-17-2005, 04:13 AM
John Holmes III
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Quote:
Originally Posted by Carrameow
Why do Mercedes W123 sunroofs and Power steering Pumps NEVER Fail? Even on the legendary Volvo 240's and SAAB 900's the sunroof's were a pain the alphabet. Also their, power steering pumps got you to 150 K only. There is something incredible about the W123 sunroof,and Power steering pump because I have never ever seen a post on these two parts
I would agree. Except....the day I bought my latest 123, I was driving home and opened the sunroof. Once I got home it wouldn't close because the clutch on the electric motor was loose. I closed it up and have been afraid to use it since. Nothing is more annoying than BMW power window switches. Nothing like rolling your windows down because the a/c comp. failed on your Broke More than it Works and then finding out that two windows won't roll up when it starts raining on the interstate. Thanks BMW, I will never buy another one.
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